21.   There was no immediate indication what role Jacques Delors, the former head of the European Commission, would play in the new government.

22.   Those alphabetic trios, called file extensions, tell the operating system the roles the files play.

23.   This leaves open what role, if any, Moscow can play as a future mediator.

24.   Tripp was the last person to see Foster alive and may have been expected to play a role in the book.

25.   With AIDGwinnett, a community-based peer education program, the seniors run role playing demonstrations at schools, churches and youth detention centers.

26.   He believed that the current high interest rate discouraged people from spending too much, showing what an important role the interest rate plays in curbing inflation.

27.   Hours later, Stockholm lost to Athens, though it was unclear what role, if any, the attacks played in the decision of the International Olympic Committee.

28.   It was not clear just what role Madani and Hachani will play since the Salvation Front is forbidden from holding meetings or exercising any other public activity.

29.   It was not immediately clear what role Aidid was playing.

30.   One expert called the new finding a breakthrough but cautioned it will take more work to see how big a role the gene plays in the disease.